Pipe-wrench



(No Model.)

I. A. soHRAMM.

PIPE WRENCH. No. 329,221. Patented 001;. 27, 1885.

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fi I I v I 0 v v Q Attorhefi NITE STATES FRANZ A. SGHRAMM, OFPHILADELPHIA, PENNSYLVANIA.

' PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 329,221, dated October27, 1885.

Application filed July 24, 1885. Serial No. 172,530. (No model.)

To all whom it may concern.-

Be it known that I, FRANZ A. SOHRAMM, a subject of the King of Bavaria,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Pipe-Wrenches, whichimprove ment is fully set forth in the'following specification andaccompanying drawings,in which Figure 1 represents a side elevation of apipe-wrench embodying my invention. Fig. 2 represents a partial sideelevation and partial section in line 00 00, Fig. 1. Fig. 3 representsaside elevation, the side covering-plate of the wrench being removed.

Similar letters of reference indicate corresponding parts in the severalfigures.

My invention relates to improvements in the class of wrenches generallytermec pipewrenches, and it consists of the construction of partswhereby the wrenches are strong,compact, and inexpensive, as will behereinafter fully set forth.

Referring to the drawings, A and B represent, respectively, the movableand stationary jaws of a wrench, the jaw B being made integral with thehandle 0. In the stock D or part of the tool between the handle andstationary jaw is a recess, E, to receive the pivotal portion A of themovable jaw, the pivots' A thereof being mounted in the side wall of thestock D, and a covering-plate, F, which is screwed or otherwise securedat one end to the jaw B and at the other end to the stock D, it beingnoticed that the plate F prevents lateral displacement of the jaw A andassists in closing the recess E. The sides of the jaw B and stock Dcontiguous to the plate F are recessed, forming shoulders G G, betweenwhich the plate F is fitted, and with which it is flush, as most clearlyseen in Fig. 2. Within the recess E are coiled springs H, which areconnected with the movable jaw and the stock D and plate F,respectively, and exert their pressure onsaid jaw, so as to force thesame toward the fixed jaw. A single spring may be sufficient for thispurpose. The contiguous sides of the shoulders G G and plate F extend inoblique directions, as at J, and the portions of the plate adjacent tothe stationary jaw are serrated similarly to said jaw.

It will be seen that the parts are strong and durable. The sides of thejaws and stock are flush, and thus the tool-occupies but little roomlaterally. The springs H are inclosed, and hence are protected. Themovable jaw and the-springs are readily applicable and removable, owingto the plate F. Owing to the oblique shoulders G G and adjacent obliqueends of the plate F, the strain on said plate, due to the portion of apipe or other article held thereagainst by the movable jaw, (see dottedlines, Fig. 3,) is transmitted to said shoulders G G, which, beingsolid, are enabled to endure such strain, so that breakage of said plateis avoided. The pivot of the movable jaw is shown integral therewith,making a stronger structure. I

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A wrench having a stationary jaw and a stock, and a movable jawpivoted in a recess of said stock and provided with springs located insaid recess and secured to said movable jaw and said stock,substantially as and for the purpose set forth.

2. In a pipe-wrench, the handle 0, having the fixed jaw B and stock D,in combination with the movable jaw A, pivoted in the recess E of saidstock, plate F, secured to said stock D and jaw B, and springs H,located in said recess E and secured to the jaw A and stock D,substantially as and for the purpose set forth.

3. A pipe-wrench consisting of the handle 0, having recessed stock D andfixed jaw B integral therewith, movable jaw A, pivoted in the recess E,and plate F, secured to said stock and fixed jaw, and having a bearingfor the axis of said movable jaw, substantially as and for the purposeset forth.

4.. In a pipe-wrench, the handle 0, having fixed jaw B, and recessedstock D, having shoulders G G, in combination with movable jaw A,pivoted in recess E, andplate F, having oblique ends, and springs H,connected to said movable jaw and stock, substantially as and for thepurpose set forth.

FRANZ A. SGHRAMM.

Witnesses:

JOHN A. WIEDERSHEIM, A. P. GRANT.

